Prof. Wipula B Yapa
Department of Zoology
Publications
First record of a Wrinkle-lipped free-tailed bat Chaerephon plicatus Buchannan, 1800 (Mammalia: Chiroptera: Molossidae) colony in Sri Lanka with notes on the echolocation calls and taxonomy of the species
Kusuminda, T.G.T. & Yapa, W.B. (2017). First record of a Wrinkle-lipped free-tailed bat Chaerephon plicatus Buchannan, 1800 (Mammalia: Chiroptera: Molossidae) colony in Sri Lanka with notes on the echolocation calls and taxonomy of the species. Journal of Threatened Taxa. Vol. 9 (4): 10021–10140
Isolation of Salmonella species in Fulvous fruit bat (Rousettus leschenaulti) in Sri Lanka
Perera H.I.T., Yapa W.B. and Perera H.K.K. (2016). Isolation of Salmonella species in Fulvous fruit bat (Rousettus leschenaulti) in Sri Lanka. Proc. of the 36th Annual Sessions of the Institute of Biology, Sri Lanka. P 33.
A Field Guide to the Bats of Sri Lanka. Colombo, Sri Lanka
Yapa, W. (2015). A Field Guide to the Bats of Sri Lanka. Colombo, Sri Lanka: Ceylon Tea Services PLC
Electrophoretic patterns of serum proteins of Rousettus leschenaulti (Fulvous fruit bat) in Sri Lanka
Ratnayake, H.U., Weerakoon, D.K., Yapa W.B. and Udagama P.V. (2014). Electrophoretic patterns of serum proteins of Rousettus leschenaulti (Fulvous fruit bat) in Sri Lanka. Proc. of the 34th Annual Sessions of the Institute of Biology, Sri Lanka. P 41.
Vocal Behaviour of the Mongolian gerbil in a semi natural enclosure
Ter-Mikaelian M, Yapa W.B. and Rubsamen, R. (2012). Vocal Behaviour of the Mongolian gerbil in a semi natural enclosure. Behaviour. Vol. 1499(5): 461-492.
A preliminary study on the Ecosystem Services of four species insectivorous bats in two natural caves, Wavulpena and Wavulgalge in Sri Lanka
Yapa, W.B. (2012). A preliminary study on the Ecosystem Services of four species insectivorous bats in two natural caves, Wavulpena and Wavulgalge in Sri Lanka. Proceedings of IOB 32nd Sessions. P17.
Echolocation behaviour of Megaderma lyra during typical orientation situations and while hunting aerial prey: a field study
Schmidt, S., Yapa, W.B., Grunwald, J. (2011) Echolocation behaviour of Megaderma lyra during typical orientation situations and while hunting aerial prey: a field study. J Comp Physiol(A). Vol 197(5): 403-412.
Yapa. W. B. (2009). Sri Lankawe Wavulan part II, Haritha Lowa –(VII):4-6
Yapa. W. B. (2009). Sri Lankawe Wavulan part I. Haritha Lowa –(VI):4-6
Effect of manual turning on the rate of degradation of household composting
Chandima V.K. and W. B. Yapa. (2009) Effect of manual turning on the rate of degradation of household composting. Proceedings of the Sri Lanka Association for the Advancement of Science, 65th Annual Sessions.
Does water level change affect the developmental plasticity of tadpoles of the common toad Duttaphrynus melanostictus (Anura: Bufonidae)?
Weerakkody, U., Wickramasinghe, D. D, Harischandra and Yapa,W.B. (2009). Does water level change affect the developmental plasticity of tadpoles of the common toad Duttaphrynus melanostictus (Anura: Bufonidae)? International Conference on emerging trends in environmental research (ICETER) 14-16 August 2009. Kochi, India
An assessment of mammalian diversity of the Wasgamuwa NP and the Ritigala SNR
Wijesinghe, M. R., W. B. Yapa, P. M. C. Digana, P. Gamage (2009). An assessment of mammalian diversity of the Wasgamuwa NP and the Ritigala SNR. Proc. of the 29th Annual Sessions of the Institute of Biology, Sri Lanka.
The effect of the aqueous stem bark extract of Kokoona zeylanica Thw. on the blood glucose level of mice
Dayananda, P.D., Yapa, W.B. and Ratnasooriya,W.D. (2008). The effect of the aqueous stem bark extract of Kokoona zeylanica Thw. on the blood glucose level of mice. Phcog Magazine. Vol 4 (16):308-314.
Developmental Plasticity of Polypedates crusiger (Ranidae: Racophorinae) tadpoles to crowding
Harischandra, I. N., C.P. Adikaram, W.B. Yapa. and D.D. Wickramasinghe. (2008). Developmental Plasticity of Polypedates crusiger (Ranidae: Racophorinae) tadpoles to crowding. Proc. of the 28th Annual Sessions of the Institute of Biology, Sri Lanka. P49.
Present status , threats and implications for conservation of bats in Sri Lanka
Yapa, W.B., Digana. P.M.C.B. and Ratnasooriya, W.D. (2007) Present status , threats and implications for conservation of bats in Sri Lanka. 1st International South Asian Bat Conference in Thailand. pp 16.
Preliminary Investigations on the roost selection and population size of the common flying fox, Pteropus giganteus iIn the Viharamahadevi Park, Colombo
Kumara, M. V. T., W.B. Yapa and Ratnasooriya, W.D. (2007). Preliminary Investigations on the roost selection and population size of the common flying fox, Pteropus giganteus iIn the Viharamahadevi Park, Colombo. Proc. of the 27th Annual Sessions of the Institute of Biology, Sri Lanka. P38.
Population Estimation Techniques for Mammals ; Direct counts.
Yapa. W. B. (2007). Population Estimation Techniques for Mammals ; Direct counts. Hands on Training Workshop on Terrestrial Mammals, SLAAS / University of Sri Jayewardenepura: 10-14.
Ethology: Methods in Behavioural Observation.
Yapa. W. B. (2007). Ethology: Methods in Behavioural Observation. Hands on Training Workshop on Terrestrial Mammals, SLAAS / University of Sri Jayewardenepura: 36-39.
Ecology and Biology of Sri Lankan Bats
Yapa, W.B. and Ratnasooriya, W. D. (2006). Ecology and Biology of Sri Lankan Bats. University of Colombo Review 1(1): 63-85.
Pup predation of Schreibers’ long-fingered bat, Miniopterus schreibersii (Microchiroptera) by two species of reptiles in the Wavulpena cave in Sri Lanka
Digana, P.M.C., Yapa, W.B. and Ratnasooriya, W.D. (2005). Pup predation of Schreibers’ long-fingered bat, Miniopterus schreibersii (Microchiroptera) by two species of reptiles in the Wavulpena cave in Sri Lanka. Lyriocephalus Special issue. 6:307-310.
Inflight and outflight activity patterns of five species of cave dwelling bats in Sri Lanka
Yapa, W.B., Ratnasooriya, W. D., Costa H.H. and Ruebsamen R. (2005). Inflight and outflight activity patterns of five species of cave dwelling bats in Sri Lanka. J Sci. Univ. Kelaniya. 2:41-62.
How bats meet in the Dark: The Contact call of Megaderma lyra and its social function
Schmidt, S, Seidl, B.; Yapa, WB. (2005) How bats meet in the Dark: The Contact call of Megaderma lyra and its social function. Europ. J. Neuroscience 12, Supplement 11: 129.
Haematological parameters of three species of wild caught microchiropteran bats, Miniopterus schreibersii, Taphozouos melanopogon and Hipposideros lankadiva in Sri Lanka
Ratnasooriya, W. D ., Udagama- Randeniya, P.V, Yapa, W.B., Digana, P.M.C.B. and Dharmasiri, M.G.(2005). Haematological parameters of three species of wild caught microchiropteran bats, Miniopterus schreibersii, Taphozouos melanopogon and Hipposideros lankadiva in Sri Lanka. J. Sci. Univ. Kelaniya. 2:27-40.
Evidence of fish in the diet of greater false vampire bat Megaderma lyra in Sri Lanka
Gunatilake M.R.M.P.N., Yapa W B. and Ratnasooriya W. D. (2005). Evidence of fish in the diet of greater false vampire bat Megaderma lyra in Sri Lanka. ZOO’S PRINT 20(4):1834-1835.
Are bats an endangered group? Evidence from Sri Lanka
Yapa W.B, Digana. P.M.C.B. and Ratnasooriya, W.D. (2005). Are bats an endangered group? Evidence from Sri Lanka. Proceedings of the 2nd Regional Symposium on Environmnet and Natural Resources. University of Kebangsaan, Malaysia.pp. 184-188.
Frog consumption by the Indian False vampire bat Megaderma lyra: Observations in a natural population in Sri Lanka
Goonatilake, M.R.M.P.N., Schmidt, S, Ratnasooriya, W. D and Yapa, W.B. (2004). Frog consumption by the Indian False vampire bat Megaderma lyra: Observations in a natural population in Sri Lanka. The Herpetology of Sri Lanka: Current Research. De Silva, Anslem (Editor) Lyriocephalus special issue. 5 (1&2) 36-43.
Activity budget in a diurnal roost of the Indian False vampire bat, Megaderma lyra Geoffrey, 1810 (Chiroptera, Megadermatidae) in Sri Lanka
Goonatilake, M.R.M.P.N., Yapa, W.B., Schmidt, S. and Ratnasooriya, W.D. (2004). Activity budget in a diurnal roost of the Indian False vampire bat, Megaderma lyra Geoffrey, 1810 (Chiroptera, Megadermatidae) in Sri Lanka. Proc. of the 24th Annual Sessions of the Institute of Biology, Sri Lanka. P12.
Roost Selection of the short nosed fruit bat, Cynopterus sp. in Sri Lanka
Digana, P.M.C.B., Yapa, W.B., Randeniya, P.V. and Ratnasooriya, W. D. (2003). Roost Selection of the short nosed fruit bat, Cynopterus sp. in Sri Lanka. J Sci. Univ. Kelaniya 1: 15-21.
Evidence for infanticide in a Sri Lankan colony of Indian false vampire bats
Nandasena, M.R. N.P., Yapa, W.B., Ratnasooriya, W. D. and Schmidt S. (2002) Evidence for infanticide in a Sri Lankan colony of Indian false vampire bats. Proc 1st European Behavioural Biology Symposium, P41.
Diet of the Greater False Vampire bat, M. lyra Geoffrey, 1810, (Chiroptera; Megadermatidae) in Sri Lanka determined by fecal analysis
Goonatilake, M.R.M.P.N., Yapa, W.B., Schmidt, S. and Ratnasooriya, W.D. (2002). Diet of the Greater False Vampire bat, M. lyra Geoffrey, 1810, (Chiroptera; Megadermatidae) in Sri Lanka determined by fecal analysis. Proc. of the 22nd Annual Sessions of the Institute of Biology, Sri Lanka. P 41.